To allow for system maintenance, the MMIS POSC, Provider Portal, HTS transactions, internal MMIS application, EVS and all eligibility services will be unavailable on Sunday, June 29, 2025, from 4:00 PM to 10:00 PM. MAP, CBHI, MeNoB, member and eligibility web services, connect direct and MOVEit file transfers and Netreveal predictive modeling application servers will also be impacted.
We apologize for any inconvenience this may cause. Providers who have questions should contact MassHealth Customer Service at 800-841-2900 (toll-free) or by email at Provider@masshealthquestions.com. EHS users with questions, please contact the EHS Customer Support Center at 617-994-5050 or email eohhs-it-customerservice.hancock@mass.gov.
MMIS System Outage Notice – Sunday, June 29, 2025